n = 11
if n < 10 then
    print("n<10 \r\n")
else print("n > 10 \r\n")
end

result = ""
if 0 then   --无论是0还是1，都是true
    result = result.."T,"
else
    result = result.."F,"

end
if a then  --只有nil的数据，是false
    result = result.."T"
else
    result = result.."F"
end
print(result)